Volume 30 Issue 2
Jun 2016
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YU Yong, MA Hong-Hao, SHEN Zhao-Wu, MIAO Guang-Hong, LI Zhan-Jun. Aluminum/Steel Composite Pipe by Explosion Expansion[J]. Chinese Journal of High Pressure Physics, 2016, 30(2): 130-134. doi: 10.11858/gywlxb.2016.02.007
Citation: YU Yong, MA Hong-Hao, SHEN Zhao-Wu, MIAO Guang-Hong, LI Zhan-Jun. Aluminum/Steel Composite Pipe by Explosion Expansion[J]. Chinese Journal of High Pressure Physics, 2016, 30(2): 130-134. doi: 10.11858/gywlxb.2016.02.007

Aluminum/Steel Composite Pipe by Explosion Expansion

doi: 10.11858/gywlxb.2016.02.007
  • Received Date: 11 Dec 2014
  • Rev Recd Date: 03 Mar 2015
  • In the present study we fabricated Al/Steel composite by explosive expansion in order to obtain a composite pipe with both good mechanical properties and fine anticorrosion properties. In our fabrication a metal detonation cord with high a detonation velocity was used as the energy source, and the water was used as the pressure medium. The ultrasonic inspection of the fabricated product shows that the binding rate, the radial deformation rate and the bending percentage of the composite pipe are 100%, 0.65% and 0.12% respectively. The compression-shear and metallographic tests were also performed to characterize the composite pipe, and the results are as follows: the bonding strength is 3.27 MPa, higher than the officially required minimum value in the construction industry and the petrochemical industry. In addition, the bonding interface is flat and smooth, without evidence of any partial over-melting occurring, and the inter-diffusion between Al and steel is found to have occurred.

     

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